
Steel – 5.0 (galvanized zinc)
Stainless steel – A2-70; A2-80

| d1 | d2 | d4 | l | m | n | s | N |
| М6 | - | 4 | 30 | 22.5 | - | 10 | 5.7 |
| M8 | - | 4 | 35 | 25 | - | 13 | 10 |
| M10 | - | 4 | 45 | 33 | - | 17 | 16 |
| M12 | - | 4 | 55 | 40 | - | 19 | 24 |
| M16 | - | 4 | 75 | 55 | - | 24 | 44 |
| M20 | 21 | 4 | 95 | - | 24 | 30 | 69 |
| M24 | 26 | 4 | 115 | - | 29 | 36 | 100 |
| M30 | 32 | 4 | 125 | - | 36 | 46 | 158 |
| M36 | 38 | 4 | 145 | - | 45 | 55 | 230 |
The round coupling nut has a trapezoidal thread and an elongated shape. It is mainly used for connecting and extending studs, as well as in the form of a tensioning coupling for adjusting the tension.
This type of nut is usually used in the construction industry for laying ventilation systems, mechanical engineering, machine tools, and in rooms with high humidity.
The coupling nut is made of galvanized steel and food grade stainless steel A2.
For more information, please contact the specialists of Eurobolt Ukraine by phone. +380442400024 or on the website
Marking
d1 – nominal diameter of the internal thread, mm
d2 – internal diameter of the nut without thread, mm
d4 – diameter of the side holes in the nut, mm
l – height of the coupling nut, mm
m – distance from the end of the nut to the edge of the hole, mm
n – length of the threaded part, mm
s – size of the turnkey nut, mm
N – permissible load, kN
